Claims
- 1. An antenna for a radio comprising:
- an elongated transmission cable having a first conductor and a second conductor, said cable having an inner end and an outer end, said inner end having leads facilitating connection to a receiver, said first conductor being electrically insulated from said second conductor within said cable, said cable being flexible permitting movement to enable said cable to be moved to assume any desirable configuration;
- an electrically conductive sheath exteriorly covering substantially the entire length of said first and said second conductors from said inner end to said outer end, said conductive sheath being electrically insulated from said first and second conductors along the said entire length of said first and said second conductors by an insulator which is coaxial with said transmission cable, said electrically conductive sheath being attached to said insulator substantially along the entirety of the outer surface of said insulator, said electrically conductive sheath to function as an electrical conductor for the received radio signal from the air;
- said first conductor, said second conductor and said electrically conductive sheath being of substantially the same length and being substantially coextensive and forming a triaxial cable as a substantially unitary assembly such that said first and second conductors, said insulator and said electrically conductive sheath move unitarily as a single unit which form a flexible unit; and
- an impedance matching network electrically connected to said first conductor and said second conductor and to said sheath said impedance matching network located remotely from said inner end, said impedance matching network to obtain the best power transfer between said antenna and the receiver.
- 2. The antenna as defined in claim 1 wherein:
- said cable being of a preselected fractional length of the wavelength of the receiver signal.
- 3. The antenna as defined in claim 2 wherein:
- said second conductor being electricly grounded.
- 4. The antenna as defined in claim 3 wherein
- the overall length of said sheath being substantially equal to one-half wavelength of the received signal.
- 5. The antenna as defined in claim 4 wherein:
- the length of said sheath being approximately fifty-eight inches.
- 6. An antenna as set forth in claim 1 wherein said cable is of substantially constant diameter.
- 7. An antenna as set forth in claim 1 wherein said impedance matching network is located at said outer end.
- 8. An antenna as set forth in claim 1 wherein antenna may be stretched in any desirable configuration to be placed in out-of-the-way locations.
- 9. The antenna as defined in claim 6 wherein said second conductor being connected to ground.
- 10. The antenna as defined in claim 7 wherein said second conductor being connected to ground.
REFERENCE TO PRIOR APPLICATION
This application is a continuation of application Ser. No. 07/718,296, filed Jun. 20, 1991, now abandoned which is a continuation-in-part of Ser. No. 515,608 filed Apr. 27, 1990, abandoned.
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Number |
Name |
Date |
Kind |
2834961 |
Lear et al. |
May 1958 |
|
3521169 |
Turner et al. |
Jul 1970 |
|
4328501 |
DeSantis et al. |
May 1982 |
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Continuations (1)
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Number |
Date |
Country |
Parent |
718296 |
Jun 1991 |
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Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
515608 |
Apr 1990 |
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